Toy caps



1958 J. B. DONALDSON 2,848,950

TOY CAPS Filed Nov. 4, 1955 lnvmbor' ww, orrwys United States PatentGfiice 2,848,950 Patented Aug. 26, 1958 TOY CAPS James B. Donaldson,Cooksville, Ontario, Canada Application November 4, 1955, Serial No.545,053

3 Claims. (Cl. 102-865) This invention relates to toy caps for cappistols and the like and to a method of making such caps.

The conventional method of making toy caps is to apply spaced depositsof the explosive composition to a base sheet. The deposits of explosivecomposition must be carefully dried. A thin sheet of tissue is thencoated with an adhesive and applied to the base sheet with pressure toadhere the sheets together. The consolidated sheet is afterwards dividedinto strips which are wound into rolls.

The foregoing procedure is subject to disadvantages in that there is aconsiderable danger of an explosion and there are delays anddifficulties in carrying out the procedure. The explosive composition ismixed with a liquid such as water before it is applied for convenienceand safety of handling and application and the deposits must, therefore,be carefully dried in a conventional process before the covering sheetis applied as otherwise the deposits will spread. There is thus a delayduring this drying step. A further difliculty of manufacture is that ofcorrectly tensioning the base and covering sheets when they are beingbrought together. The manufacturing steps have to be carried out withconsiderable care to minimize the possibility of an explosion. There isdanger of an explosion when the covering sheet is brought together withthe base sheet as the tissue of the covering sheet will be hardened bythe paste. There is a further danger of an explosion when the sheets arebeing pressed together. As there may be air spaces between the depositsin the final product there will be a possibility of the caps detonatingin a series.

The object of this invention is to provide an improved method of makingtoy caps and also an improved product. The manner in which this isachieved in accordance with this invention will be apparent from thedescription which follows of the preferred embodiment of this invention.

In the drawings illustrating this invention:

Figure 1 is a plan view of a sheet of caps made in accordance with thisinvention;

Figure 2 is a section view on the line II of Figure 1;

Figure 3 is a view similar to Figure 2 but illustrating an intermediatestage in the manufacture of the sheet of caps.

In accordance with the preferred embodiment of this invention depositsof explosive compound admixed with a liquid such as water are placed inspaced relationship on a base sheet of paper 11 as shown in Figure 3.The foregoing is carried out in a conventional manner using conventionalmaterials. Instead, however, of adhering a sheet of tissue as a coveringsheet the upper surface of the base sheet 11 is sprayed with a thinlayer 12 of a thermoplastic synthetic resin coating composition toprovide the sheet illustrated in Figures 1 and 2. This layer 12 isapplied before the explosive composition is completely dried. Forexample the explosive composition can be partially dried to a moisturecontent of about 5%. There is a considerable choice of suitable coatingcompositions but by way of example a conventional latex coatingcomposition applied in a thickness of about 0.005 inch, preferably atransparent or translucent coating composition should be used tofacilitate the positioning of the product in the toy pistol or the likein which it is to be used. The sheet can then be severed as indicated bydotted lines 13 in Figure 1 to provide the caps in roll form.Alternatively the sheet can be divided to provide individual caps orcaps indisc form.

The foregoing method has the advantages that the dilficult and dangerousoperations of bringing the facing sheets and backing sheets together andof pressing these sheets is eliminated. A further advantage is that thepossibility of chain detonation of the caps in the final product isconsiderably lessened. Another important advantage is that the depositsof explosive composition do not have to be completely dried before thespray layer is applied provided that the liquid is immiscible with theplastic coating composition. The caps will dry out through the backingsheet which is of paper or other material permeable to moisture duringstorage. This both results in a saving in time and increased safety asthe damp composition is unlikely to explode during the subsequenthandling and subdividing of the sheets.

I claim:

1. In a method of making toy caps the steps of applying spaced depositsof an explosive composition admixed with a liquid to a base sheetpermeable to moisture, partially drying said explosive composition to amoisture content at which the explosive composition will not substantially spread when sprayed with a coating composition but at whichthe detonation of said explosive composition will be inhibited, andspraying said base sheet and the partially dried explosive compositionwith a thin layer of a coating composition immiscible with said liquidto provide a protective covering to consolidate and maintain saiddeposits in position on the base sheet.

2. In a method of making toy caps the steps of applying spaced depositsof an explosive composition admixed with a liquid to a base sheetpermeable to moisture, partially drying said explosive composition to amoisture content at which the explosive composition will notsubstantially spread when sprayed with a coating composition but atwhich the detonation of said explosive composition will be inhibited,spraying said base sheet and the partially dried explosive compositionwith a thin layer of a coating composition immiscible with said liquidto provide a protective covering to consolidate and maintain saiddeposits in position on the base sheet and subdividing said sheet beforethe partially dried explosive composition has become substantiallycompletely dry.

3. A process as in claim 1 in which the explosive composition ispartially dried to a moisture content of about References Cited in thefile of this patent UNITED STATES PATENTS 1,989,495 Peake Jan. 29, 19352,637,664 Howe May 5, 1953 2,665,221 Grangaard Jan. 5, 1954 2,721,140Weisgerber Oct. 18, 1955

1. IN A METHOD OF MAKING TOY CAPS THE STEPS OF APPLYING SPACED DEPOSITSOF AN EXPLOSIVE COMPOSITION ADMIXED WITH A LIQUID TO A BASE SHEETPERMEABLE TO MOISTURE, PARTIALLY DRYING SAID EXPLOSIVE COMPOSITION TO AMOISTURE CONTENT AT WHICH THE EXPLOSIVE COMPOSITION WILL NOTSUBSTANTIALLY SPREAD WHEN SPRAYED WITH A COATING COMPOSITION BUT ATWHICH THE DETONATION OF SAID EXPLOSIVE COMPOSITION WILL BE INHIBITED,AND SPRAYING SAID BASE SHEET AND THE PARTIALLY DRIED EXPLOSIVECOMPOSITION WITH A THIN LAYER OF A COATING COMPOSITION IMMISCIBLE WITHLIQUID TO PROVIDE A PROTECTIVE COVERING TO CONSOLIDATE AND MAINTAIN SAIDDEPOSITS IN POSITION ON THE BASE SHEET.